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CM-2024-216 - 8/23/2024STATE OF TEXAS § COUNTY OF WILLIAMSON § SUPPLEMENTAL CONTRACT NO. 2 TO CONTRACT FOR ENGINEERING SERVICES FIRM: KIMLEV-HORN AND ASSOCIATES, INC. ("Engineer") ADDRESS: 10814 Jollyville Road, Campus IV, Suite 200, Austin, TX 78759 PROJECT: DB Wood Raw Waterline Relocation This Supplemental Contract No. 2 to Contract for Engineering Services is made by and between the City of Round Rock, Texas, hereinafter called the "City" and Kimley-Horn and Associates, Inc., hereinafter called the "Engineer." WHEREAS, the City and Engineer executed a Contract for Engineering Services, hereinafter called the "Contract," on the 15th day of August, 2022 for the DB Wood Raw Waterline Relocation Project in the amount of $26,670.00; and WHEREAS, the City and Engineer executed Supplemental Contract No. l on February 9, 2023 to amend the scope of services and to increase the compensation by $466,413.41 to a total of $493,083.41; and WHEREAS, it has become necessary to amend the Contract to modify the provisions for the scope of services and to increase the compensation by $28,185.00 to a total of $521,268.41; NOW THEREFORE, premises considered, the City and the Engineer agree that said Contract is amended as follows: Article I, City Services and Exhibit A, City Services shall be amended as set forth in the attached Addendum To Exhibit A. Article 2, Engineerinl? Services and Exhibit B, Engineering Services shall be amended as set forth in the attached Addendum to Exhibit B. Exhibit C, Work Schedule shall be amended as set forth in the attached Addendum to Exhibit C. M,A-*o-e� Supplemental Contract 0199 202234. 4884-0647-7270 Rev.06/ 16 84275 Article 4, Compensation and Exhibit D, Fee Schedule shall be amended by increasing by $28,185.00 the maximum amount payable under the Contract for a total of $521,268.41, as shown by the attached Addendum to Exhibit D. IN WITNESS WHEREOF, the City and the Engineer have executed this Supplemental Contract in duplicate. [signature pages follow] Supplemental Contract Rev.06?16 0 199.202234, 4884-0647-7270 84275 KIMLEY-HORN AND ASSOCIATES, INC. By: —j (� Ll!,'! o L� _ Date Supplemental Contract Rcv.06/I6 0199.202234;4884-10647-7270 84275 CITY OF ; ROCK APPROVED AS TO FORM: By: - Laurie Hadley, City Manager V Steph nie L. Sandre, City Attorney Date Supplemental Contract Rev.06116 0199 20223C 4884-0647-7270 84275 ADDENDUM TO EXHIBIT A CITY SERVICES The City of Round Rock (City) will provide the following information and other assistance to the Engineer that the City deems appropriate and necessary: • Any readily available pertinent existing information relating to the services to be performed by the Engineer; the City will provide one copy of such information in a format chosen by the City. • Clear direction and/or response to questions or requests made by the Engineer in the course of the Engineer's performance of services. • Timely review of deliverables that have been properly completed and submitted by the Engineer; and timely provisions of comments, if any, to the Engineer resulting from said reviews. • Meet with the Engineer on an as -needed basis to facilitate performance of the Work. • Arrange for the Engineer and their Sub -Consultants to access public and private property as required to perform services under this contract, if necessary. ADDENDUM TO EXHIBIT B ENGINEERING SERVICES July 29, 2024 Adam Levy, PE City of Round Rock 3400 Sunrise Rd. Round Rock, TX 78665 Re: Additional Services Agreement D B Wood Road Improvement Round Rock's 30-inch Waterline Relocation Dear Mr. Levy: Kimley-Horn and Associates, Inc. ("Kimley-Horn" or "Consultant") is pleased to submit this proposal to the City of Round Rock ("Client") for providing additional scope for the engineering design for the relocations of the 30" waterline at D B Wood Road in Georgetown, Texas, and related appurtenances. The additional fee is requested for the effort required for the easement coordination with the property owner at the bridge causing an additional approximately 10-months duration to the project. This scope also covers additional fee required by subconsultants. Scope of Services Kimley-Horn will provide the additional services specifically set forth below. Task 1 — Project Management — Additional Effort to Original Scope a) Project Schedule — Kimley-Horn has developed an updated project schedule and internal team meetings to plan for executing the project scope of services b) Invoicing and Progress Reports — Up to twelve (12) additional monthly invoicing and progress reports. c) Up to two (2) Additional Progress meetings —This assumes virtual meetings with the Client and coordination. d) Up to one (1) additional Site Visit with the owner to review current site conditions. e) Design Team Coordination — up to two (2) additional Project Team meetings during the duration of the delay. f) Subconsultant Coordination —Additional coordination between the subconsultants and Kimley- Horn, and status updates. Task 4 — Bridge Relocation Task 4.13 — 90% - Additional Effort to Original Scope VI. Easement Coordination: this effort includes coordination with Client and property owner's consultant to determine the limits of the easement required. VII. Data Gathering & Exhibits: this effort includes CAD file processing from the property owner's consultant (for up to 1 parcel) and two (2) rounds of exhibits provided by Kimley-horn to Client, property owner's consultant, and Property Owner during the easements coordination. Rev 06/2024 Task 5 — Subconsultants Task 5.b - Bridge Relocation III. Geotechnical - Kimley-Horn has brought Terracon to provide geotechnical services for the project. The fee provided is to cover the following additional scope of services: • Additional testing for the HDD tunneling per Tunneling subconsultant's recommendations. • Having an engineer on site for continuous observation. • Increased sampling frequency • Abandoning the borehole with Bentonite Cement -Grout, as well as additional cost for clearing of the site for access. Their updated scope for the Bridge relocation is attached to this document. Fee and Expenses Kimley-Horn will perform the services in Tasks 1 - 8 on a labor fee plus expense basis with the maximum fee shown below. Task Original Fee Additional Fee Updated Total 1 Project Management $31,860.00 $12,560.00 $44,420.00 2 Embankment Dam Relocation & SH-29 Relocation $95 720 00 $0.00 $95,720.00 3 Culvert/ Headwall Protection $12,910.00 $0.00 $12,910.00 4 Bridge Relocation $70,820.00 $13,000.00 $83,820.00 5a Subconsultant Dam and SH 29 $64,618.52 $0.00 $64,618,52 5b Subconsultant Bridge Crossing $94,384.89 $2,625.00 $97,009.89 6 Permitting $9,320.00 $0.00 $9,320.00 7 Bid Phase Services $15,060.00 $0.00 $15,060.00 8 Construction Phase Services $69,720.00 $0.00 $69,720,00 Expenses $2,000.00 $0.00 $2,000.00 Total $466,413.41 $28,185.00 $494,598.41 Additional Fee Total Updated Fee Rev 06/2024 $28,185.00 $494,598.41 August 1, 2024 Kimley-Hom 10814 Jollyville Road Campus IV, Suite 200 Austin, Texas 78759 Attn: Ms. Tara Raoof, P.E. P: (737) 270 7767 E: Tara.Raoof@kimley-hom.com Wrerracon Re: Proposal for Geotechnical Engineering Services -- Change Order i DB Wood 30-inch-diameter WL Relocations DB Wood Road Georgetown, TX Terracon Proposal No. PAC225108 Revision 1 Dear Ms. Raoof: We appreciate the opportunity to submit this proposal to Kimley-Horn (K-H) to provide Geotechnical Engineering Services — Change Order 1 for the above referenced publicly -funded project. The following are exhibits to the Individual Purchase Order (IPO) to be issued by Kimley- Horn at a later date. Exhibit A Project Understanding Exhibit B Scope of Services Exhibit C Compensation and Project Schedule Exhibit D Site Location and Nearby Geotechnical Data Exhibit E Anticipated Exploration Plan See Exhibit C for details of our fees and schedule and consideration of additional services_ Additional services include drilling the borings to deeper depths, performing additional laboratory testing to meet updated client's requirements, grouting the borings full depth, overseeing drilling activities, removing cacti along the equipment paths with a bobcat and placing plywood at the 3 identified shallow creek crossings to access boring B-1 location. This proposal is offered valid for a consideration period of 90 days from the issuance of this proposal to the Client. Proposal for Geotechnical Engineering Services — Change Order 1 Services DB terracon Wood 30-inch-diameter WL Relocations Georgetown, TX 10814 Jollyville Road Campus IV, Suite 200 - Terracon Proposal No. PAC225108 Revision 1 Your authorization for Terracon to proceed in accordance with this proposal can be issued by signing an IPO. The IPO should refer to the previously signed Master/Professional Services Agreement between Terracon and Kimley-Horn dated August 4, 2021. Sincerely, Terracon Consultants, Inc. Diana Vargas-Suaza, P.E. Senior Project Manager f>.r �' r-L Bryan S. Moulin, P.E. Senior Principal, Geotechnical Department Manager Explore with us Proposal for Geotechnical Engineering Services — Change Order 1 �erracon DB Wood 30-inch-diameter WL Relocations • Georgetown, TX im August 1, 2024 ■ Terracon Proposal No. PAC225108 Revision 1 EXHIBIT A - PROJECT UNDERSTANDING Our updated Scope of Services is based on our understanding of the project as described by K- H and the expected subsurface conditions as described below. We visited the project site to confirm the information provided. We request the design team verify all information prior to our initiation of field exploration activities. Site Location and Anticipated Conditions Item i Description Site Location The waterline relocation project is situated along DB Wood Road in Georgetown, TX. Existing DB Wood roadway and bridge and SH 20 roadway. Existing Improvements Current Ground Cover Soils, grass, weeds, scattered to dense trees, asphalt pavement, gravels. Based on topographic information provided by the client, the elevations across Existing Topography the bridge relocation site vary from --810 feet on the south side of the crossing, to --745 feet at the bottom of San Gabriel River, to —790 feet on the north side of the crossing. Based on our site assessments, cactus removal with a bobcat is necessary along equipment paths for boring access; additionally, Limited pathway Site Access clearing will be required to access boring B-1 location and plywood will be needed to cross the existing 3 shallow creek crossings to access B-1 boring location. Expected Subsurface Our experience near the vicinity of the proposed development and geologic Conditions maps indicates subsurface conditions consist of surficial soils overlying near - surface Edwards Group limestone. Planned Construction Item_ Description Information Provided Project information and site location provided via e-mail by Ms. Tara Raoof with K-H between November 1a' and November 8, 2022 and May 8, 2024. The existing 30-in ch-dia meter Round Rock Raw Waterline will be relocated in areas adjacent to DB Wood Road. The bridge Relocation consists of Proposed Structure approximately 1,200 LF of water line to be relocated in this area. We also understand HDD method for the installation of the pipe will be used in this area. Approximate water line elevation at the San Gabriel River will be 709 feet. Building Construction ; Water line will consist of ductile iron. Explore with us EXHIBIT A - PROJECT UNDERSTANDING 1 of 2 Proposal for Geotechnical Engineering Services — Change Order 1 DB Wood 30-inch-diameter WL Relocations r Georgetown, TX August 1, 2024 .. Terracon Proposal No. PAC225108 Revision 1 Item Grading/Slopes Additional Services werracon Description HDD method is anticipated at the bridge water line relocation; therefore, cuts are not anticipated at this location. _ The following are additional services were not included in our original proposal No. PAC225109 Revision 1 dated November 18, 2022. ■ Additional sampling of soil materials while drilling has been included in this Change Order. ■ Additional laboratory testing per Schnabel's requirements are included in this Change Order. The new tests include more frequent classification tests, additional unconfined compressive strength tests of rock, and four Cerchar Abrasivity tests. ■ A field geologist or engineer will oversee drilling activities ■ A bobcat is required to remove the cacti along the equipment paths. ■ Plywood is required at the three shallow creek crossings to access boring B-1 location. Explore with us EXHIBIT A - PROJECT UNDERSTANDING 2 of 2 Proposal for Geotechnical Engineering Services - Change Order 1 �err�con DB Wood 30-i nch-dia meter WL Relocations ■ Georgetown, TX so August 1, 2024 13 Terracon Proposal No. PAC225108 Revision 1 EXHIBIT B - SCOPE OF SERVICES Our proposed Scope of Services consists of field exploration, laboratory testing, and engineering/project delivery. These services are described in the following sections. Field Exploration K-H and Schnabel Engineering prescribed the following boring locations and depths. Raw Water Line (RWL) Exploration Scope - Bridge Relocation Planned Location I Number of Borings Raw Waterline TOTAL 1 (south entry point) 1 (north entry point) 2 Planned Boring Depth (feet) " z' s 105 80 Maximum Footage of 185 feet Below ground surface. Based on existing grades at accessible boring locations, boring depths were estimated with the plan to extend at least 20 feet below the bottom of the lowest pipe elevation of approximately 709 feet. Borings drilled in this area for Terracon Project No. AC205034 will also be used to provide recommendations for the bridge WL relocation. We understand piezometers are not required to be installed at these boring locations. Boring Layout and Elevations: We will use handheld GPS equipment to locate borings with an estimated horizontal accuracy of +1-10 feet. Field measurements from existing site features may be utilized. If available, approximate elevations will be obtained by interpolation from a site specific, surveyed topographic map or Google Earth. Subsurface Exploration Procedures: Our drilling subcontractor will advance soil borings with a truck -mounted drill rig using continuous flight augers (solid stem and/or hollow stem, as necessary, depending on soil conditions). Four to five samples will be obtained in the upper 10 feet of each boring and at intervals of 5 feet thereafter (unless bedrock is encountered). However, up to five additional samples per boring will be collected if soft, loose or gravelly soils are encountered before rock is encountered. Soil sampling is typically performed using thin -wall tube and/or split - barrel sampling procedures. The split -barrel samplers are driven in accordance with the standard test method for standard penetration test (SPT) and split -barrel sampling of soils. Bedrock is sampled with either split -barrel -sampling spoons or continuously cored using NX wireline rock coring equipment. The samples will be placed in appropriate containers, taken to our soil laboratory for testing, and classified by a Geotechnical Engineer. In addition, we will observe and record groundwater levels during drilling and sampling and 10 minutes after boring completion. We also plan to observe and record groundwater level 24 hours after boring completion in the first boring drilled for this project. Explore with us EXHIBIT C - COMPENSATION AND PROJECT SCHEDULE 1 of 7 Proposal for Geotechnical Engineering Services — Change Order 1erraeon DB Wood 30-inch-diameter WL Relocations ■ Georgetown, TX id August 1, 2024 a Terracon Proposal No. PAC225108 Revision 1 Our exploration team will prepare field boring logs as part of standard drilling operations including sampling depths, penetration distances, recovery (in inches), rig behavior such as rig chatter, hole collapse during drilling (if it occurs) and other relevant sampling information. Field logs include visual classifications of materials encountered during drilling including soil type, particle size and angularity, and our interpretation of subsurface conditions between samples. Information about any fluid loss or loss of circulation during drilling will also be recorded in the field logs. Final boring logs, prepared from field logs, represent the Geotechnical Engineer's interpretation, and include modifications based on observations and laboratory tests. Property Disturbance: Our drilling subcontractor will grout (full depth) the borings after completion of drilling activities with bentonite upon completion of drilling activities. Our services do not include repair of the site beyond grouting our boreholes. Excess auger cuttings will be dispersed in the general vicinity of the borehole. Because backfill material often settles below the surface after a period, we recommend boreholes to be periodically checked and backfilled, if necessary. We can provide this service, for additional fees, at your request. Safety Terracon is not aware of environmental concerns at this project site that would create health or safety hazards associated with our exploration program; thus, our Scope considers standard OSHA Level D Personal Protection Equipment (PPE) appropriate. Our Scope of Services does not include environmental site assessment services, but identification of unusual or unnatural materials encountered while drilling will be noted on our logs and discussed in our report. Exploration efforts require borings into the subsurface, therefore Terracon complies with local regulations to request a utility location service Texas 811 (aka One -Call). We consult with the owner/client regarding potential utilities, or other unmarked underground hazards. Based upon the results of this consultation, we consider the need for alternative subsurface exploration methods, as the safety of our field crew is a priority. Private utilities should be marked by the owner/client prior to commencement of field exploration. Terracon will not be responsible for damage to private utilities not disclosed to us. If the ownerlclient is unable to accurately locate private utilities, Terracon can assist the owner/client by coordinating or subcontracting with a private utility locating services. Fees associated with the additional services are not Included in our current Scope of Services and will be forwarded to our client for approval prior to initiating. The detection of underground utilities is dependent upon the composition and construction of the utility line; some utilities are comprised of non -electrically conductive materials and may not be readily detected. The use of a private utility locate service would not relieve the owner of their responsibilities in identifying private underground utilities. Site Access: Terracon must be granted access to the site by the Client and/or City of Round Rock. By acceptance of this Change Order proposal, without information to the contrary, we consider this as authorization to access the property for conducting field exploration in accordance Explore with us EXHIBIT C - COMPENSATION AND PROJECT SCHEDULE 2 of 7 Proposal for Geotechnical Engineering Services — Change Order 1 DB Wood 30-inch-diameter WL Relocations : Georgetown, TX mo terracon August 1, 2024 ■ Terracon Proposal No. PAC225108 Revision 1 with the Scope of Services. Client agrees it will respond quickly to all requests for information made by Consultant related to Consultant's pre -task planning and risk assessment processes. Pathway Clearing using a Hydroaxe: Based on our site visits, the area north of San Gabriel River crossing is moderately to densely wooded and will require limited pathway clearing (not whole site clearing) for drill rig access to boring B-1 location. We understand Kimley-Horn will obtain a Tree Removal approval granted by the City of Round Rock specifying that clearing is allowed. Our clearing subcontractor uses a hydroaxe machine to remove the trees and will generally remove smaller trees initially to avoid larger diameter trees, if possible (i.e., follow the path of least resistance avoiding older growth trees). Our scope of work assumes 1 day of clearing will be required. Cactus Removal with a Bobcat: Our site assessments indicate that cactus removal is necessary along equipment paths for boring access. Our subcontractor will be responsible for the controlled removal of the cacti only along the designated paths. All cactus cuttings will be disposed of on - site. Laboratory Testing The project engineer will review field data and assign laboratory tests to understand the engineering properties of various soil and rock strata. Exact types and number of tests cannot be defined until completion of field work. The anticipated laboratory testing may include the following: ■ Water content —14 tests ■ Atterberg limits — 10 tests ■ Hydrometer analysis — 2 tests • Grain size analysis (full sieve) including hydrometer tests — 2 tests per boring ■ D422 sieve analysis — 8 tests ■ Unconfined compressive strength of rock — 10 tests ■ Cerchar abrasivity — 2 tests per boring Our laboratory testing program often includes examination of soil samples by an engineer. Based on the material's texture and plasticity, we will describe and classify soil samples in accordance with the Unified Soil Classification System (USCS). Samples obtained during the field exploration will be discarded 30 days after the date of the geotechnical engineering report (unless sample storage beyond the 30 days is requested by the Client and incorporated into our scope of work and fees). If bedrock samples are obtained, rock classification will be conducted using locally accepted practices for engineering purposes; petrographic analysis (if performed) may reveal other rock types. Rock core samples typically provide an improved specimen for this classification. Boring log rock classification is determined using the Description of Rock Properties. Explore with us EXHIBIT C - COMPENSATION AND PROJECT SCHEDULE 3 of 7 Proposal for Geotechnical Engineering Services — Change Order 1 DB Wood 30-inch-diameter WL Relocations ■ Georgetown, TX wr ierracon August 1, 2024 Terracon Proposal No, PAC225108 Revision 1 Engineering and Project Delivery Results of our field and laboratory programs will be evaluated by a professional engineer. The engineer will develop a geotechnical site characterization, perform the engineering calculations necessary to evaluate foundation alternatives, and develop appropriate geotechnical engineering design criteria for earth -related phases of the project. Your project will be delivered using our GeoRepoW system. Upon initiation, we provide you and your design team the necessary link and password to access the website (if not previously registered). Each project includes a calendar to track the schedule, an interactive site map, a listing of team members, access to the project documents as they are uploaded to the site, and a collaboration portal. The typical delivery process includes the following: Project Planning — Proposal information, schedule and anticipated exploration plan will be posted for review and verification Site Characterization — Findings of the site exploration Geotechnical Engineering Report When utilized, our collaboration portal documents communication, eliminating the need for long email threads. This collaborative effort allows prompt evaluation and discussion of options related to the design and associated benefits and risks of each option. With the ability to inform all parties as the work progresses, decisions and consensus can be reached faster. In some cases, only minimal uploads and collaboration will be required, because options for design and construction are limited or unnecessary. This is typically the case for uncomplicated projects with no anomalies found at the site. When services are complete, we upload a printable version of our completed geotechnical engineering report, including the professional engineer's seal and signature, which documents our services. Previous submittals, collaboration and the report are maintained in our system. This allows future reference and integration into subsequent aspects of our services as the project goes through final design and construction. The geotechnical engineering report will provide the following: Boring logs with field and laboratory data ■ Stratification based on visual soil and rock classification ■ Groundwater levels observed during and after the completion of drilling ■ Site Location and Exploration Plans ■ Subsurface exploration procedures ■ Description of subsurface conditions ■ Subgrade preparation/earthwork recommendations Explore with us EXHIBIT C - COMPENSATION AND PROJECT SCHEDULE 4 of 7 Proposal for Geotechnical Engineering Services — Change Order 1 iirerracon DB Wood 30-inch-diameter WL Relocations ■ Georgetown, TX August 1, 2024 r Terracon Proposal No. PAC225108 Revision 'I Additional Services In addition to the services noted above, the following are often associated with geotechnical engineering services. Fees for services noted above do not include the following: Review of Plans and Specifications: Our geotechnical report and associated verbal and written communications will be used by others in the design team to develop plans and specifications for construction. Review of project plans and specifications is a vital part of our geotechnical engineering services. This consists of review of project plans and specifications related to site preparation, foundation, and pavement construction. Our review will include a written statement conveying our opinions relating to the plans and specifications' consistency with our geotechnical engineering recommendations. Observation and Testing of Pertinent Construction Materials: Development of our geotechnical engineering recommendations and report relies on an interpretation of soil conditions. This is based on widely spaced exploration locations, and assuming construction methods will be performed in a manner sufficient to meet our expectations, and is consistent with recommendations made at the time the geotechnical engineering report is issued. We should be retained to conduct construction observations, and perform/document associated materials testing, for site preparation, foundation, and pavement construction. This allows a more comprehensive understanding of subsurface conditions and necessary documentation of construction, to confirm and/or modify (when necessary) the assumptions and recommendations made by our engineers. EXHIBIT C — COMPENSATION AND PROJECT SCHEDULE Compensation Based upon our understanding of the site, the project as summarized in Exhibit A, and our planned Scope of Services outlined in Exhibit B, our base fee is shown in the following table: Task Lump Sum Fee Subsurface Exploration, Laboratory Testing, Geotechnical Consulting & Reporting for y Bridge WL Relocation $37,500 I . Limited pathway clearing is anticipated for the borings in bridge relocation area. This cost includes 1 day of limited pathway clearing. This cost also includes the use of a bobcat to remove cactus along the proposed paths to access boring locations and placing plywood along the 3 shallow creek crossings to access boring B-1 location. This scope includes additional geotechnical services requested by K-H and Schnabel and additional equipment and materials needed to access the boring locations. The following table Explore with us EXHIBIT C - COMPENSATION AND PROJECT SCHEDULE 5 of 7 Proposal for Geotechnical Engineering Services — Change Order 1erracon DB Wood 30-inch-diameter WL Relocations a Georgetown, TX August 1, 2024 . Terracon Proposal No. PAC225108 Revision 1 provides a comparison of the original fee provided in our Proposal No. PAC225108 dated November 18, 2022 and the new fee. Task Original Fee Additional Fee Updated Total Subsurface Exploration, Laboratory Testing, Geotechnical Consulting & Reporting for $35,000 $2,500 $37,500 Bridge WL Relocation Additional services not part of the base fee include the following: Additional Services (see Exhibit B) Lump Sum Fee Initial for Authorization Private Utility Locate Service Not included Additional day of limited pathway clearing' $3,000 per day Construction Materials Testing Services $TBD t. Limited pathway clearing is anticipated for this site. This cost is provided only if more than day is needed to perform limited pathway clearing to access the boring locations. Our Scope of Services does not include services associated drilling outside normal business hours (07:00 AM through 06:00 PM on weekdays), site clearing, wet ground conditions, the use of ATV or track -mounted drilling equipment, or repair of damage to existing landscape. If such services are desired by the owner/client, we should be notified so we can adjust our Scope of Services. Additional consultation (such as attendance on a project conference call, engineering analysis, review of project documents, etc.) requested will be performed on a time -and -materials basis. The fee to provide additional consultation services will be in excess of the above provided fee to complete the geotechnical services and will not be incurred without prior approval of the client. Unless instructed otherwise, we will submit our invoice(s) to the address shown at the beginning of this proposal. If conditions are encountered that require Scope of Services revisions and/or result in higher fees, we will contact you for approval, prior to initiating services. A supplemental proposal stating the modified Scope of Services as well as its effect on our fee will be prepared. We will not proceed without your authorization. Project Schedule We developed a schedule to complete the Scope of Services based upon our existing availability and understanding of your project schedule. However, this does not account for delays in field exploration beyond our control, such as weather conditions, permit delays, or lack of permission Explore with us EXHIBIT C - COMPENSATION AND PROJECT SCHEDULE 6 of 7 Proposal for Geotechnical Engineering Services — Change Order 1erracon DB Wood 30-inch-diameter WL Relocations -j Georgetown, TX so August 1, 2024 a Terracon Proposal No. PAC225108 Revision 1 to access the boring locations. In the event the schedule provided is inconsistent with your needs, please contact us so we may consider alternatives. GeoReport• Delivery Project Planning Limited Pathway Clearing Mobilization of Drill Rig Site Characterization (i.e., completion of field sampling and laboratory testing) 11 Total Duration from Notice to Proceed1,2 5 days from NTP 2 to 3 weeks from NTP 3 to 4 weeks from NTP 5 to 6 weeks from NTP Upon receipt of your notice to proceed we will activate the schedule component of our GeoReport* website with specific, anticipated calendar days for the three delivery points noted above as well as other pertinent events such as field exploration crews on -site, etc. We will maintain a current calendar of activities within our GeoReport* website. In the event of a need to modify the schedule, the schedule will be updated to maintain a current awareness of our plans for delivery. Explore with us EXHIBIT C - COMPENSATION AND PROJECT SCHEDULE 7 of 7 ol GREENRIDGE lw OAKCREST L . r liO 9 CL L citi'm C_ w'Un[versity -Ave 2500 feet. A 7W _51 43` f, -A � Hydma*ePmhlQyC»7mgSGR . / , .. 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